If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
(1/2)*x+x+x+5 = 100 // - 100
(1/2)*x+x+x-100+5 = 0
5/2*x-95 = 0 // + 95
5/2*x = 95 // : 5/2
x = 95/5/2
x = 38
x = 38
| -x+2(-z)+3z=-1 | | -x+2(-2)+3z=-1 | | (1/2)z=10 | | (1/2)y=4+(1/2)y | | (1/2)y=(-3/4)y-40 | | (4X-3)/27=63 | | (4*X-3)/27=63 | | (1/2)y-1=(1/3) | | (1/2)y-(3/10)=(2/10)-(1/2)y | | (1/2)y-(1/3)=(1/4)y+(1/5) | | (1/2)x=9 | | 7z+7y=0 | | (1/2)x=10 | | (1/2)x=1 | | 33=21+8k | | (4*x-3)27=63 | | (1/2)x=(7/10) | | (1/2)x-6=7+(1/2)x | | (4x-3)27=63 | | (1/2)x-6=12 | | (1/2)x-4=(3/4)x+12 | | (1/2)x-4=(3/4)x | | 4x=68-4 | | (1/2)x-3=11 | | (1/2)x-1=15 | | (1/2)x-12=4 | | (1/2)x-1/4=6 | | (1/2)x-(5/3)=(-1/2)+(19/4) | | (1/2)x-(3/2)=(5/2) | | 48-7/5 | | 10x-9=3x+12 | | (1/2)x-(2/3)=x+(1/5)1 |